...
Water harvesting and soil moisture retention
6
1 Introduction: why water
harvesting and soil moisture
retention
Water is one of the main requirements ... encourage infiltration and storage of rainwater (soil
moisture retention or conservation). The advantages of water harvest-
ing and moisture retention techniques in (semi-)arid areas may be
summa...
... the
Water harvesting and soil moisture retention
14
3.2 The water- soil system
The objective of a water harvesting system is to harvest runoff. Runoff
is produced in the water- soil system ...
(mm/growing pe-
riod)
Sensitivity to
drought
Bean 95 - 110 300 - 500 medium - high
Maize 125 - 180 500 - 800 medium - high
Melon 120 - 160...
...
Water harvesting and soil moisture retention
38
Figure 11: Contour ridges and furrows.
Conditions
Rainfall: 350 - 700 mm
Soil: Good results on silty loam to clay loam soils. On heav-
ier, ... contours) may come closer to-
Water harvesting and soil moisture retention
52
Figure 20: Closed micro-catchment on sloping land.
Figure 21: Closed micro-catchme...
...
Water harvesting and soil moisture retention
70
8 Measures to improve infiltration
and water storage
Infiltration of water into a soil is improved by making the soil struc-
ture looser and ... crops also suppress weed growth.
Water harvesting and soil moisture retention
62
Part II: Soil moisture retention
In this second part soil moistu...
... 3).
Soil moisture. Water held in the soil and available to plants through
their root system, also called soil water.
Soil moisture profile. The depth to which water infiltrates into the
soil, ... more years and which
normally flowers and fruits at least in its second and subsequent years.
Water harvesting and soil moisture retention
92
Further read...
... your time, and accept my best wishes for
your health and happiness.’
And with these words he hastily left the room, and Elizabeth heard him the
next moment open the front door and quit the ... mind, was now painfully great. She knew not how to
support herself, and from actual weakness sat down and cried for half-an-
hour. Her astonishment, as she reflected on what had passed,...
... sixty-five feet in length, and weighing, I roughly calculated, at least three
thousand pounds. And then came the foremast, larger in diameter, and weighing
surely thirty-five hundred pounds. Where ... terrible hands of his! You know how he leaped across the opening of
the lazarette."
" ;And you know also how I crept about and avoided him," I contended gaily.
"...
... (drag-
and- drop), and new controls (sliders, combo boxes, and in-place editors).
DHTML isn’t a special language; it’s just a term for what becomes possible when the
DOM APIs for markup and style ... space-wise, as their block-level
brethren. Figure 9-3 illustrates.
Figure 9-3 . By default, inline elements adopt the size and shape of the text they envelop.
Inline elements can con...
... may still seem strange that the lower and upper limits of (5.13) depend,
respectively, on the upper-tail and lower-tail quantiles of the t(n − k) distri-
bution. This actually makes perfect sense, ... definition. Any τ greater than the
median is in the right-hand tail of the distribution, and any τ less than the
median is in the left-hand tail.
Exact Confidence Intervals for Regression Co...
... to monitor for dioxins and adopt short-term control measures (Hanmer
1988; EPA-V 1988).
EPA and industry begin the “104 Mill study.”
Dioxin from Pulp and Paper and Lead in Soil at Mining Sites
43
town. ... Federal Water Pollution Control Law,” Clean Water Deskbook,
2nd ed. Environmental Law Institute: Wash., DC, pp. 5-2 0.
Gilman and EPA. 1994. Memorandum of Understanding be...