作者对于造林的前景做出了什么样的结论？
What does the author conclude about the prospects of forestation?
所有这一切都使得重新造林的纯利益极难估算。
All of this makes the net benefit of reforestation extremely difficult to measure.
承包方承包宜林荒山荒地造林的，按照森林的规定办理。
In cases a contractor contracts for afforestation of waste hills and unreclaimed lands suitable for afforestation, provisions of the Forestry Law shall be followed.
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